CN102459832A - Injection system for injecting fluid into an exhaust system - Google Patents
Injection system for injecting fluid into an exhaust system Download PDFInfo
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- CN102459832A CN102459832A CN2010800278233A CN201080027823A CN102459832A CN 102459832 A CN102459832 A CN 102459832A CN 2010800278233 A CN2010800278233 A CN 2010800278233A CN 201080027823 A CN201080027823 A CN 201080027823A CN 102459832 A CN102459832 A CN 102459832A
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- pressure compensation
- module
- ejecting system
- fluid
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/36—Arrangements for supply of additional fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1446—Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to an injection system for injecting a fluid into a filter provided in an exhaust system, comprising at least two modules and at least one pressure compensation volume (44, 46, 48, 54, 56, 58), which is designed for feeding fluid to at least one of the modules and hydraulically connects at least two of the modules. Each module comprises at least one injection unit (40, 50, 60) designed for injecting fluid into the exhaust system.
Description
Technical field
The present invention relates to a kind of ejecting system that is used for spraying a fluid into exhaust portion.
Background technique
Be well known that, the micronic dust filter cleaner is installed in the vent systems of the internal-combustion engine of vehicle.Internal-combustion engine for example relates to diesel engine, so this micronic dust filter cleaner for example act as the flue dust filter cleaner and because its filtration reduces the fine dust discharge capacity.In order to prevent that filter from exhausting, and need make filter regeneration frequently after certain application time.This regeneration for example is elevated to about 600 degrees centigrade through temperature and realizes, micronic dust thus, and especially flue dust is burnt.Because this is not that the measure through motor type is feasible under all running statees, so through for example diesel oil realization temperature rising of fuel, this fuel is ejected in the exhaust portion through injection valve.This injected fuel arrives the oxidation catalyzer that is arranged on micronic dust filter cleaner front.Oxidized or the burning of fuel in this arrival oxidation catalyzer and so cause the rising of delivery temperature makes corresponding described waste gas arrive the micronic dust filter cleaner of back and causes regeneration at that.
Be used to regenerate the method and apparatus of micronic dust filter cleaner for example at DE 10 2,005 034 704 A1, describe among DE10 2,006 062 491 A1 and DE 10 2,006 057 425 A1.
The at present known system that is used for spraying a fluid into exhaust portion only is used for unique exhaust portion and the Fluid Volume that do not allow to spray raises arbitrarily.
Summary of the invention
Task of the present invention is, a kind of ejecting system that is used for spraying a fluid into the improvement of exhaust portion is provided, and this ejecting system is adaptive simply to have the vent systems of a plurality of gas exhaust pipings and realize spraying big Fluid Volume arbitrarily.
This task solves through the ejecting system according to independent claims 1.Dependent claims has been described the favourable configuration according to ejecting system of the present invention according to independent claims 1.
Ejecting system according to the present invention has at least two modules and at least one pressure compensation volume.This pressure compensation volume is configured to fluid is inputed at least one in the module and at least two in the module hydraulically interconnected.In the module each has the input part and at least one injection unit that is used to hold fluid, and this injection unit is configured to spray a fluid in the exhaust portion.
Through modular structure, according to the different amount demand of adaptive simply multistage vent systems of ejecting system of the present invention and fluid to be sprayed.Especially can spray big Fluid Volume arbitrarily through adding attached module.
The transmission of the pressure vibration of pressure compensation volume vibration damping between these single modules arranged according to the present invention.Therefore guarantee, on each module, have the pressure condition of substantial constant.This has realized accurately spraying given in advance Fluid Volume.
In one embodiment, this first module has the metering unit that is used for the dosage fluid at least.Can accurately confirm the emitted dose of expectation through this metering unit.
In another embodiment, metering unit has the shut-off valve and the metering valve that is used for the dosage fluid that is used to turn-off the fluid input.At this, the outlet of shut-off valve hydraulically is connected with the inlet of metering valve.Have this structure shut-off valve and metering valve, that become the metering unit that row are provided with in succession and realized turn-offing reliably the fluid input and the emitted dose of dosage expectation accurately on the other hand on the one hand.Through this mode, i.e. fluid input can irrespectively be turned off through this shut-off valve and metering valve, even anti-reliably fluid does not controllably flow out under the situation of metering valve fault.Therefore promoted the reliability of ejecting system.
In one embodiment, the portion of becoming a mandarin of module together homogeneous turbulence body input part hydraulically connect.At this, this common fluid input part is configured to the pressure compensation volume at least in part.The fluid input part that is configured to the pressure compensation volume at least in part is responsible for the pressure decoupling of the necessity between these modules.Corresponding big volume can be for example and the same structure of track of in rail technology altogether, using, and makes to employ by the known experience of rail technology altogether.
In an alternate embodiments, the portion that becomes a mandarin of second module hydraulically is connected through the outlet of pressure compensation volume with the shut-off valve of first module.In this embodiment, the fluid input part of whole ejecting system can turn-off through the shut-off valve of first module.Can in attached module, give up shut-off valve thus, so that reduce the cost of these modules.
In the modification of this mode of execution; The portion that becomes a mandarin of three module hydraulically is connected with the pressure compensation volume, makes this pressure compensation volume can jointly be applied to second, third and be used for other modules in case of necessity and with the quantity of the module of using only unique pressure compensation volume is set irrespectively.Through using only unique pressure compensation volume the cost of ejecting system to be kept low.
In the mode of execution that substitutes, the portion that becomes a mandarin of this three module hydraulically is connected with the outlet of the shut-off valve of second module through the second pressure compensation volume.Through this mode, promptly in this embodiment each module respectively through self the pressure compensation volume with couple in preceding module, these single pressure compensation volumes can be constructed less than common pressure compensation volume.Through using a plurality of little pressure compensation volumes, this ejecting system can the adaptive flexibly space that has and is simplified the installation of ejecting system.
Be provided with the dosing device that at least one is used for the dosage fluid in one embodiment.At this, this pressure compensation volume can be filled with fluid through this dosing device.In an ejecting system, need only unique dosing device, this common pressure compensation volume is filled with fluid through dosing device in this ejecting system.Can further reduce the cost of ejecting system thus.
In one embodiment, between this pressure compensation volume and each module, a valve is set, especially safety check.Through this valve, these single modules are by decoupling hydraulically each other.If these modules are decoupling hydraulically each other, this pressure compensation volume can be constructed and the operational reliability of ejecting system is enhanced littlelyr so, because prevent the harmful interaction between these single modules reliably.
In another embodiment, be that second dosing device that the second pressure compensation volume is supplied with fluid hydraulically is connected with first dosing device through the 3rd pressure compensation volume.Ejecting system with this structure can at random be expanded, and this ejecting system especially can so be constructed, and makes also can spray big Fluid Volume in a plurality of exhaust portion.
In one embodiment, the catalyst converter upstream configuration in being arranged on exhaust portion be used for the injection unit of jet fluid.Realize the fluid of combustion jet catalytically thus and realize that therefore regeneration is arranged on the filter in the exhaust portion especially effectively.
Description of drawings
The present invention is below according to the system's quilt explanation at length that is used for the fuel of fluid is ejected into exhaust portion illustrated in the accompanying drawings.But the present invention also is applied in and is used to spray the for example system of urea of other fluids.
Fig. 1 illustrates first embodiment according to ejecting system of the present invention of the metering unit with three series connection,
Fig. 2 illustrates second embodiment according to ejecting system of the present invention, and wherein, metering unit interconnects through common pressure compensation volume,
Fig. 3 illustrates modification metering unit, second embodiment with two simplification,
Fig. 4 illustrates the 3rd embodiment, and wherein, whole three metering units are supplied to fluid through common pressure compensation volume,
Fig. 5 schematically shows has vent systems and according to the 4th embodiment's of ejecting system of the present invention internal-combustion engine, wherein, common pressure compensation volume is supplied to through unique metering unit,
Fig. 6 is illustrated in the embodiment's shown in Fig. 1 and 5 combination.
Embodiment
Fig. 1 illustrates first embodiment who has the ejecting system of first module according to of the present invention, and this ejecting system has first metering unit 10 and first injection unit 40.This first metering unit 10 has shut-off valve 12, can turn on and off through the fuel stream of this shut-off valve through 8 inputs of fuel input part.In the outlet port, that is to say on flow direction in shut-off valve 12 back, be provided with first pressure transducer 16 on the fuel conduit 19 in first metering unit 10, so that measure the pressure of the fuel that flows into.On flow direction, be provided with metering valve 14 in first pressure transducer, 16 back, this metering valve structure is so that the emitted dose of dosage expectation.Be provided with second pressure transducer 18 in the outlet port of dosage 14, so that measure fuel pressure in the outlet port of metering valve 14.The outlet of first metering unit 10 hydraulically is connected with the inlet of first injection unit 40.This injection unit 40 also has cooling ABAP Adapter and metal seal except injection valve 42, and this metal seal does not illustrate in the explanatory view of Fig. 1.
Between first pressure transducer 16 of the outlet of shut-off valve 12 and first metering unit 10, the first pressure compensation volume 44 is connected on the fuel conduit 19, since this pressure compensation volume is filled when shut-off valve 12 is opened from the fuel of fuel intake line 8.The outlet of the first pressure compensation volume 44 is connected with the inlet of the metering unit 20 of second module, and this second module has second metering unit 20 and second injection unit 50.Thus when the shut-off valve 12 of first metering unit 10 is opened, since the metering unit 20 of second module is supplied to through the first pressure compensation volume 44 from the fuel of fuel input part 8.
Between first pressure transducer 26 of the shut-off valve 22 of second module and metering unit 20, the second pressure compensation volume 54 is connected on the fuel conduit 29, and this pressure compensation volume is that the metering unit 30 of second module is supplied with fuel when shut-off valve 22 is opened.Three module has the 3rd injection unit 60, and this injection unit is supplied with fuel by the metering unit 30 of three module.
In addition through by additional not metering unit that the pressure compensation volume shown in Fig. 1 will not illustrate in Fig. 1 and respectively another injection unit be connected on the fuel conduit 39 in the 3rd metering unit 30, can at random expand at the ejecting system shown in Fig. 1.
Through this mode, i.e. identical module that comprises metering unit 10,20,30 and injection unit 40,50,60 and the pressure compensation volume 44,54 of utilization structure respectively, according to ejecting system of the present invention can be especially simple, flexibility and cost advantageously make.Must make only three various structure elements, can be assembled into big ejecting system arbitrarily by them.Through this mode, promptly use independent pressure compensation volume 44,54 respectively for the connection of each metering unit 10,20,30, these single pressure compensation volumes 44,54 have little size and can simply and flexibly install.
Fig. 2 illustrates the embodiment who substitutes according to ejecting system of the present invention.
The metering unit 10,20,30 that uses in this embodiment and injection unit 40,50,60 and the unit that in first embodiment, uses are that structure is identical and so no longer redescribe.
Embodiment is with different in the embodiment shown in Fig. 1 shown in figure 2; Its mode is; Promptly not only second metering unit 20 but also the 3rd metering unit 30 and other metering units of in Fig. 2, not illustrating in case of necessity are connected on the pressure compensation volume 46, and this pressure compensation volume is connected on the fuel conduit 19 of first metering unit 10 in the downstream of shut-off valve 12.Because only use unique pressure compensation volume 46 shown in figure 2 among the embodiment, make and assemble a plurality of pressure compensation volumes so can give up.Therefore, this ejecting system can be simply and cost advantageously make and assemble.
Fig. 3 illustrates embodiment's modification shown in figure 2; Wherein, The metering unit 21,31 that is connected on the pressure compensation volume 48 does not have shut-off valve and has only pressure transducer 28,38 respectively, and this pressure transducer relative set is in corresponding metering valve 22,34 back.
Do not have the metering unit 21,31 of shut-off valve be called as " driven " metering unit 21,31 and than so-called " initiatively " metering unit 10 more cost advantageously make, should additionally have shut-off valve 12 and first pressure transducer 16 between shut-off valve 12 and metering valve 14 by " initiatively " metering unit.This fuel input part can turn-off through the shut-off valve 12 that is closed in first " initiatively " metering unit 10 for whole ejecting system in this embodiment.
Fig. 4 illustrates the 3rd embodiment with three " initiatively " metering units 10,20,30, and these " initiatively " metering units and first embodiment's metering unit structure is identical and be connected on the common fuel input part 54.At this, this common fuel input part 54 (" rail altogether ") is configured to the pressure compensation volume at least in part.Movably use in this embodiment from the altogether member and the experience of rail technology, make can be especially simple and cost advantageously realize this embodiment.
In an embodiment that substitute, that do not illustrate, as the metering unit of " driven " metering unit do not have shut-off valve ground structure and central shut-off valve do not illustrate, lead in the intake line of common fuel input part 54.
Fig. 5 illustrates the embodiment who substitutes according to one of ejecting system of the present invention, and wherein, these single modules comprise injection unit 40,50,60,70 respectively and supplied with fuel by common metering unit 10 through common pressure compensation volume 58.
Schematically illustrated internal-combustion engine in Fig. 5 with 6 cylinders and two gas exhaust pipings 82,84.In each of gas exhaust piping 82,84, a micronic dust filter cleaner 76 is set respectively, this micronic dust filter cleaner is configured so that to filter the micronic dust from blast air.In each of gas exhaust piping 82,84, between internal-combustion engine 72 and corresponding micronic dust filter cleaner 76, oxidation catalyzer 74 is set respectively.
Four injection units 40,50,60,70 are arranged on the gas exhaust piping 82,84 altogether, so that will be ejected into by metering unit 10 metering fuels in the corresponding exhaust portion 82,84 at the upper reaches of oxidation catalyzer 74.By injected fuel catalytically burning in oxidation catalyzer 74.Through so raise temperature in gas exhaust piping 82,84 of burning, make to be deposited on soot combustion and the regeneration micronic dust filter cleaner 76 in the micronic dust filter cleaner 76.
The embodiment shown in Fig. 5 according to ejecting system of the present invention has the metering unit of being learnt by first embodiment 10, and this metering unit is supplied to fuel through fuel input part 8.This metering unit 10 will be input to through the fuel quantity of metering unit 14 dosages in the common pressure compensation volume 58, and this pressure compensation volume hydraulically is connected with four injection units 40,50,60,70.Therefore these four injection units 40,50,60,70 can be supplied to the fuel from pressure compensation volume 58.These injection units 40,50,60,70 are with identical with injection unit 40,50,60 structures that combine to describe in preceding embodiment and therefore no longer redescribe.
In four injection units 40,50,60,70 each is connected with pressure compensation volume 58 through the fuel conduit 49,59,69,79 of self.In fuel conduit 49,59,69,79 in each, at pressure compensation volume 58 and each injection unit 40,50,60, safety check 64,65,66,67 is set respectively between 70. Safety check 64,65,66,67 prevents that fuel is back to the pressure compensation volume 58 from injection unit 40,50,60,70.Therefore injection unit 40,50,60,70 decoupling each other hydraulically.
The embodiment shown in Fig. 5 of ejecting system has only unique metering unit 10 and unique pressure compensation volume 58.Therefore it especially cost advantageously make and have an only low locational requirement.
Fig. 6 illustrates another embodiment according to ejecting system of the present invention, and wherein, first embodiment combines with the 4th embodiment.
Having three metering units 10,20,30 in the embodiment shown in Fig. 6 is used for filling the pressure compensation volume 56,57,58 that sets to corresponding metering unit 10,20,30 respectively with the fuel quantity of dosage.Three injection units 40,50,60,41,51,61,43,53,63 are connected in the pressure compensation volume 56,57,58 on each, and these injection units are with identical with injection unit 40,50,60 structures that combine to describe in preceding embodiment and have the jet blower that in Fig. 7, does not illustrate especially respectively and be used for being ejected into the exhaust portion that does not illustrate by the fuel of metering unit 10,20,30 dosages.
In the embodiment shown in Fig. 6 with first embodiment's (Fig. 1) advantage and the 4th embodiment's (Fig. 6) advantages.Especially realize the modular structure of this embodiment's two-stage, be used for being ejected into especially big vent systems with a lot of gas exhaust pipings with the adaptive especially flexibly any vent systems of ejecting system and with especially big fuel quantity.
The structure with three metering units 10,20,30 shown in Fig. 6 is only given an example, and each in these metering units is that three injection units 40,50,60,41,51,61,43,53,63 are supplied with fuel.In the metering unit 10,20,30 each can be the injection unit 40,50,60,41,51,61,43,53,63 of any greater or lesser quantity and supplies with fuel.The metering unit 10,20,30 of same any amount can combine, so that the ejecting system of expectation size is provided.
In the embodiment who substitutes, do not illustrate in the drawings, additional metering unit 20,30 is connected with first metering unit 10 through the common pressure compensation volume according to second embodiment.These additional metering units 20,30 also can be configured to not have " driven " metering unit 21,31 of the shut-off valve 22,32 of self, keep low so that will be used for the cost of ejecting system.
Alternatively, whole three metering units 10,20,30 also can connect through common fuel input part, and this fuel input part is configured to the pressure compensation volume at least in part according to the 3rd embodiment.
Claims (13)
1. be used for spraying a fluid into the ejecting system of exhaust portion, wherein this ejecting system has at least two modules and at least one pressure compensation volume (44,46,48,54,56,58); Wherein, each module comprises at least one injection unit (40,50; 60), said injection unit is configured to spray a fluid in the exhaust portion and wherein, said pressure compensation volume (44; 46,48,54; 56,58) be configured to fluid is inputed at least one in the said module and at least two in the said module hydraulically interconnected.
2. according to the ejecting system of claim 1, wherein, at least the first module has the metering unit (10,20,30 that is used for the dosage fluid; 21,31).
3. according to the ejecting system of claim 2, wherein, said metering unit (10,20; 30) has the metering valve (14,24 that is used to turn-off the shut-off valve (12,22,32) of fluid input and is used for the dosage fluid; 34), and wherein, said shut-off valve (12,22; The inlet of outlet 32) and said metering valve (14,24,34) hydraulically connects.
4. according to the ejecting system of claim 2 or 3, wherein, the portion of becoming a mandarin of said module homogeneous turbulence body input part (54) together hydraulically connects and wherein, common said fluid input part (54) is configured to the pressure compensation volume at least in part.
5. according to the ejecting system of claim 3, wherein, the portion of becoming a mandarin of second module hydraulically is connected with the outlet of the shut-off valve (12) of said first module through said pressure compensation volume (44,46).
6. according to the ejecting system of claim 5, have three module, wherein, the portion that becomes a mandarin of said three module hydraulically is connected with said pressure compensation volume (46).
7. according to the ejecting system of claim 5, have the three module and the second pressure compensation volume (54), wherein, the portion that becomes a mandarin of said three module hydraulically is connected with the outlet of the shut-off valve (22) of said second module through the said second pressure compensation volume (54).
8. according to the ejecting system of one of claim 2 to 7, wherein, only said first module has shut-off valve (12).
9. according to the ejecting system of claim 1, have at least one dosing device that is used for the dosage fluid (10), wherein, said pressure compensation volume (56) can be filled with fluid through said dosing device (10).
10. according to the ejecting system of claim 9, wherein, said dosing device (10) is to be used to turn-off the shut-off valve (12) of fluid input and have the metering valve (14) that is used for the dosage fluid.
11., wherein, between said pressure compensation volume (56) and each injection unit (40,50,60), a valve (64,66,68) is set, especially safety check according to the ejecting system of claim 9 or 10.
12. according to the ejecting system of one of claim 9 to 11, have second dosing device (20), wherein, said second dosing device (20) hydraulically is connected with said first dosing device (10) through additional pressure compensation volume (44).
13. according to the ejecting system of one of aforesaid right requirement, wherein, said injection unit is so constructed, and makes and can spray a fluid in the exhaust portion at the catalyst converter upper reaches in being arranged on said exhaust portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009027182.1 | 2009-06-25 | ||
| DE200910027182 DE102009027182A1 (en) | 2009-06-25 | 2009-06-25 | Injection system for injecting fluid into an exhaust tract |
| PCT/EP2010/055491 WO2010149409A1 (en) | 2009-06-25 | 2010-04-26 | Injection system for injecting fluid into an exhaust system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102459832A true CN102459832A (en) | 2012-05-16 |
| CN102459832B CN102459832B (en) | 2015-11-25 |
Family
ID=42359430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080027823.3A Expired - Fee Related CN102459832B (en) | 2009-06-25 | 2010-04-26 | For spraying a fluid into the ejecting system in exhaust portion |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8863501B2 (en) |
| EP (1) | EP2446125B1 (en) |
| JP (1) | JP5809134B2 (en) |
| CN (1) | CN102459832B (en) |
| DE (1) | DE102009027182A1 (en) |
| WO (1) | WO2010149409A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109798166A (en) * | 2017-11-17 | 2019-05-24 | 罗伯特·博世有限公司 | It runs the method for reagent quantitative system and executes the equipment of this method, circuit network |
| CN110566375A (en) * | 2018-06-06 | 2019-12-13 | 罗伯特·博世有限公司 | Water injection device for internal combustion engine and internal combustion engine for motor vehicle |
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| US8984868B2 (en) * | 2012-05-07 | 2015-03-24 | Electro-Motive Diesel, Inc. | Exhaust system having multiple dosers |
| DE102014201816A1 (en) * | 2014-01-31 | 2015-06-18 | Mtu Friedrichshafen Gmbh | System for dosing of reducing agent in an exhaust device of an internal combustion engine and internal combustion engine |
| DE112014006732T5 (en) | 2014-06-11 | 2017-05-11 | Tenneco Automotive Operating Company Inc. | Fluid supply system with line pressure control valve |
| US10202883B2 (en) * | 2014-11-21 | 2019-02-12 | Tenneco (Suzhou) Emission System Co., Ltd. | Common rail assembly, urea injection system and application thereof |
| CN105673154B (en) | 2014-11-21 | 2019-11-08 | 天纳克（苏州）排放系统有限公司 | Common rail, the application of the common rail, urea injection system and its control method |
| GB2560374B (en) * | 2017-03-10 | 2019-08-14 | Delphi Tech Ip Ltd | Multi doser SCR system |
| WO2019170225A1 (en) * | 2018-03-06 | 2019-09-12 | Delphi Technologies Ip Limited | Multi doser scr system |
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| US6125629A (en) * | 1998-11-13 | 2000-10-03 | Engelhard Corporation | Staged reductant injection for improved NOx reduction |
| JP2002221024A (en) * | 2001-01-22 | 2002-08-09 | Kawasaki Heavy Ind Ltd | METHOD AND DEVICE FOR SUPPLYING LIQUID REDUCING AGENT FOR NOx REMOVAL SYSTEM |
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| DE10210282A1 (en) * | 2002-03-08 | 2003-09-25 | Bosch Gmbh Robert | Device for injecting fuel into stationary internal combustion engines |
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| DE102005012940A1 (en) * | 2005-03-21 | 2006-09-28 | Robert Bosch Gmbh | Fuel injection device for an internal combustion engine |
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| DE102006003639A1 (en) * | 2006-01-26 | 2007-08-02 | Robert Bosch Gmbh | Fuel-injection system used in multicylindered internal combustion engines comprises a volume in a high-pressure reservoir for damping pressure pulses between high-pressure reservoirs and between the reservoirs and a high-pressure pump |
| DE102006009099A1 (en) | 2006-02-28 | 2007-08-30 | Daimlerchrysler Ag | Fuel injection system for use in e.g. diesel internal combustion engine, has pressure regulating valve that is arranged between check valve and dosing valve and is connected with system by outlet |
| DE102006057425A1 (en) | 2006-05-23 | 2007-11-29 | Robert Bosch Gmbh | Apparatus for regeneration, for temperature application and / or for thermal management, associated injection valve and method |
| DE102006032155A1 (en) * | 2006-07-12 | 2008-01-24 | Daimler Ag | Internal combustion engine for a motor vehicle comprises a device feeding fuel to a dosing device of an exhaust gas purification system and returning excess fuel via a damping volume controlling pressure peaks at the dosing device |
| DE102006062491A1 (en) | 2006-12-28 | 2008-07-03 | Robert Bosch Gmbh | Fuel dosing device for exhaust gas system of internal combustion engine i.e. diesel engine, has damping device provided for damping pressure oscillation and connected with fuel inlet that is fed from low pressure system of injection system |
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2009
- 2009-06-25 DE DE200910027182 patent/DE102009027182A1/en not_active Withdrawn
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2010
- 2010-04-26 US US13/380,238 patent/US8863501B2/en not_active Expired - Fee Related
- 2010-04-26 EP EP10718125.7A patent/EP2446125B1/en not_active Not-in-force
- 2010-04-26 JP JP2012516596A patent/JP5809134B2/en not_active Expired - Fee Related
- 2010-04-26 CN CN201080027823.3A patent/CN102459832B/en not_active Expired - Fee Related
- 2010-04-26 WO PCT/EP2010/055491 patent/WO2010149409A1/en active Application Filing
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| US6125629A (en) * | 1998-11-13 | 2000-10-03 | Engelhard Corporation | Staged reductant injection for improved NOx reduction |
| JP2002221024A (en) * | 2001-01-22 | 2002-08-09 | Kawasaki Heavy Ind Ltd | METHOD AND DEVICE FOR SUPPLYING LIQUID REDUCING AGENT FOR NOx REMOVAL SYSTEM |
| JP2005307769A (en) * | 2004-04-19 | 2005-11-04 | Hino Motors Ltd | Exhaust emission control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109798166A (en) * | 2017-11-17 | 2019-05-24 | 罗伯特·博世有限公司 | It runs the method for reagent quantitative system and executes the equipment of this method, circuit network |
| CN110566375A (en) * | 2018-06-06 | 2019-12-13 | 罗伯特·博世有限公司 | Water injection device for internal combustion engine and internal combustion engine for motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120131910A1 (en) | 2012-05-31 |
| EP2446125B1 (en) | 2015-10-14 |
| JP2012530868A (en) | 2012-12-06 |
| EP2446125A1 (en) | 2012-05-02 |
| US8863501B2 (en) | 2014-10-21 |
| WO2010149409A1 (en) | 2010-12-29 |
| JP5809134B2 (en) | 2015-11-10 |
| DE102009027182A1 (en) | 2010-12-30 |
| CN102459832B (en) | 2015-11-25 |
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